European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
December 2018
Print ISSN:
0965-7452
Electronic ISSN:
2396-8893
Vol:
26
Issue:
4

The Effects of Different Spectrophotometric Modes on Colour Measurement of Resin Composite and Porcelain Materials

doi: 10.1922/EJPRD_01767Alghazali11

Objectives: To investigate the influence of a number of controlled modes on the spectrophotometric analysis of the colour of resin composite and porcelain materials. Methods: A total of 20 samples of commercially available resin composite, and 20 samples of commercially available porcelain materials in four different shades were produced (five
samples for each shade). Colour was measured using a spectrophotometer (CM2600d, Minolta Konica) set with different colour measuring modes namely, small aperture size (SAV) or large aperture size (MAV); specular component included (SCI), or excluded (SCE); 0% (UV-) or 100% UV illumination (UV+). Colour data were then compared using paired T-test. Results: Colour coordinates measured with spectrophotometric modes set as 2° observation angle, SAV, SCI, and UV- were significantly different from those measured with 10° observation angle, MAV, SCE, and UV+ respectively in most cases for both materials. Conclusion: Different spectrophotometric modes (2 or 10 degrees observation angle, SAV or MAV aperture size, 0% or 100% UV, and SCI or SCE) significantly influenced the absolute colour measurements of resin composite and porcelain samples. Clinical significance: Measuring modes should be taken into consideration when
comparing the results of absolute colour measurements of resin composite and dental porcelain materials.

Keywords
Colour
Spectophotometer
Porcelain

Article Price
£15.00
Institution Article Price
£
Page Start
163
Page End
173
Authors
Dr. Nabiel Alghazali, Dr. Antony Preston, Dr. Mohammed Moaleem, Dr. Fadi Jarad, Dr. Abdullah Alfarraj Aldosari, Prof. Phil Smith

Articles from this issue

  • Title
  • Pg. Start
  • Pg. End

  1. The Effects of Different Spectrophotometric Modes on Colour Measurement of Resin Composite and Porcelain Materials
  2. 163
  3. 173

  1. Shade Stability of Polymer Infiltrated and Resin Nano Ceramic Crowns after Dynamic Chewing Simulation
  2. 174
  3. 183

  1. Accidental Ingestion of an Implant Screwdriver: A Case Report and Literature Review
  2. 184
  3. 189

  1. Mini Dental Implants in the Management of The Atrophic Maxilla and Mandible: A New Implant Design and Preliminary Results
  2. 190
  3. 196

  1. Prevalence and Factors Associated with the Use of Denture Adhesives by Older Complete Denture Wearers
  2. 197
  3. 201

  1. Clinical Evaluation of All Ceramic Zirconia Framework Resin Bonded Bridges
  2. 203
  3. 211